Font lock in org+elisp confused with ?\[

[Tom Gillespie <tgbugs@gmail.com>]

This is a known issue with org babel blocks. It is due to the fact
that org babel translates the font locking for the language but not
the syntax propertization. Another frequent cause is the bash case
statement. The end result is that unmatched parens leak out from the
babel blocks and wreak havoc elsewhere in the org file unless you
balance out the parens e.g. in a comment. I have a hacked fix for
this, but it has horrible performance, especially with line numbers
enabled. I think that a proper solution would run arbitrary syntax
propertization on subsets of a buffer without having to continually
check where those subsets start or end. Best,
Tom